lighting

[CHILLI RED]

I just picked up a new light fixture for my tank today at b.a.'s. Coralife h.o. came with 2 bulbs. 10,000 and an actinic. What bulbs are best to use for arowana setup?

 

[carcrazy]

The actinic (20K) will look really blue (I use them in my saltwater tank). I would go for another 10K or 6K (if you aren't worried about algae). Most people seem to like a redder color so the colder the temp, the redder the light.

 

[Cimmel1]

I would replace the actinic with a 6-7.5k bulb. That combined with the 10k should show off the colours of your fish nicely. I used to run an 18k ho over my tank but found this to be the cause of frequent algae blooms and cloudy water. I cut back to a 10k and all is good now.